CN104612591A - Impregnated diamond block and manufacturing method thereof - Google Patents
Impregnated diamond block and manufacturing method thereof Download PDFInfo
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- CN104612591A CN104612591A CN201410774687.4A CN201410774687A CN104612591A CN 104612591 A CN104612591 A CN 104612591A CN 201410774687 A CN201410774687 A CN 201410774687A CN 104612591 A CN104612591 A CN 104612591A
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- diamond
- impregnated
- metal
- powder
- carcass
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- 239000010432 diamond Substances 0.000 title claims abstract description 182
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 180
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 79
- 239000002184 metal Substances 0.000 claims abstract description 79
- 239000000843 powder Substances 0.000 claims abstract description 78
- 238000005553 drilling Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims description 46
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 claims description 28
- 229910001573 adamantine Inorganic materials 0.000 claims description 28
- 238000007731 hot pressing Methods 0.000 claims description 14
- 238000002360 preparation method Methods 0.000 claims description 14
- 238000005245 sintering Methods 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 10
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 238000005469 granulation Methods 0.000 claims description 8
- 230000003179 granulation Effects 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 238000007747 plating Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 7
- 238000005299 abrasion Methods 0.000 description 14
- 239000011435 rock Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000004575 stone Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- 238000000227 grinding Methods 0.000 description 3
- 150000001722 carbon compounds Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000021180 meal component Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- -1 that is Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses an impregnated diamond block and a manufacturing method thereof. The impregnated diamond block comprises a working layer for drilling operation. The working layer comprises carcass powder and diamond impregnated in the carcass powder. The diamond comprises two kinds of diamond of different grain diameters, namely the diamond of the first grain diameter and the diamond of the second grain diameter. The outer surface of the diamond is plated with a metal coating, and the metal coating of the diamond is coated with a metal powder layer, so that polycrystalline diamond composite teeth have the good wear resistance and tenacity, and the problem that the teeth are likely to be broken due to the fact that the an existing impregnated diamond block is not tough enough is solved.
Description
Technical field
The present invention relates to probing apparatus field, particularly relate to a kind of impregnated with diamond block and preparation method thereof.
Background technology
Along with the development of modern society, people constantly increase resource consumption, and Geological-prospecting Drilling forward deep, the development of ultra-deep portion, along with the increase of drilling depth, geology hardness, also along with increase, makes the difficulty of deep hole geological drilling increasing.When creeping into solid rock stratum, easily there is the situations such as drilling efficiency is low, and bit life is short, taking rate is lower, hindering the carrying out of probing work to a great extent in normal drill bit.And diamond-impregnated bit effectively can solve the difficulty that normal drill bit runs into, it is completed by the grinding of impregnated diamond formation in carcass and creeps into.But in drilling process, the diamond on impregnated bit can continue to come off along with the continuous grinding of carcass, finally make carcass not diamond be come off to the adamantine dynamics that plates, thus cause bit life and drilling efficiency also greatly to reduce.
Generally start with from the aspect such as structure design, impregnated with diamond block constituent of drill bit with improving in prior art, the structure design, mouth of a river design, Bionic Design, each component proportion of adjustment carcass etc. of such as drill bit lip strengthen carcass strength, and rarely have and study diamond different-grain diameter proportioning.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of impregnated with diamond block and preparation method thereof, its by diamonds of interpolation two kinds of different-grain diameters and on its plated surface the coat of metal and and coated metal powder, adhesion between diamond and carcass powder is effectively improved, and effectively can delay the wearing and tearing of carcass, solve in prior art and make because tyre body abrasion is too fast Large stone diamond come off too early, thus cause bit life short and the low problem of drilling efficiency.
Technical scheme of the present invention is as follows:
A kind of impregnated with diamond block, comprise the working lining for carrying out drilling operation, wherein, described working lining comprises carcass powder and impregnated diamond in carcass powder, described diamond comprises the diamond of two kinds of different-grain diameters: the first particle diameter diamond and the second particle diameter diamond, described adamantine external surface is coated with layer of metal coating, and the described adamantine coat of metal is also coated with layer of metal powder.
Described a kind of impregnated with diamond block, wherein, described carcass powder comprises one or more metal-powders in WC, W, Co, Ni, Ti, Mn, Cu, Cr, Mo, P, Si.
Described a kind of impregnated with diamond block, wherein, the metal in the described coat of metal comprise in Ti, Cr, Mo, Ni one or more.
Described a kind of impregnated with diamond block, wherein, described metal powder comprises one or more metal-powders in carcass powder.
Described a kind of impregnated with diamond block, wherein, the thickness of described metal powder is 50-500 μm.
Described a kind of impregnated with diamond block, wherein, the adamantine concentration of described first particle diameter is 50-200%, and its granularity is 15-75 order.
Described a kind of impregnated with diamond block, wherein, the adamantine concentration of described second particle diameter is 25-125%.Its granularity is 75-500 order.
A preparation method for impregnated with diamond block, wherein, comprises the following steps:
A, choose the diamond of 2 kinds of different-grain diameters, and plate at selected diamond surface the coat of metal that attached a layer thickness is 1-100 μm;
B, wrap up a layer thickness at the diamond surface plating the attached coat of metal and be the metal powder of 50-500 μm and carry out granulation, the diamond of granulation is mixed with carcass powder, diamond uniform is dispersed in carcass powder and forms working lining tire raw material;
C, in hot pressing sintering mold, add inoperative layer carcass powder and working lining tire raw material, cold pressing and form impregnated with diamond blank; And impregnated with diamond blank and hot pressed sintering mould are together put into vacuum hotpressing stove sinter; D, sintered after, hot pressing sintering mold after impregnated with diamond block cools naturally, finishing impregnated with diamond block.
Beneficial effect: a kind of impregnated with diamond block of the present invention and preparation method thereof, it is by making an addition in carcass powder by the diamond of two kinds of different-grain diameters, and the coat of metal and the process of coated metal powder are carried out to diamond surface, improve the associativity of diamond and carcass, and add the wearing and tearing that the second less particle diameter diamond of particle diameter can delay carcass, make prepared impregnated with diamond block can also drilling life of bit effectively prepared by prolongation impregnated with diamond block while having good nonferromagnetic substance, significantly reduce drilling cost.
Accompanying drawing explanation
Fig. 1-4 is that in the invention process, the first half is working lining, the latter half is the structural representation of the impregnated with diamond block of inoperative layer.
Fig. 5 is the top view of the impregnated with diamond block of Fig. 1-4.
Fig. 6-8 is the structural representation that the bonding surface of working lining and inoperative layer in the embodiment of the present invention is parallel to cylindrical axle center or the impregnated with diamond block with axis coinciding.
Fig. 9-11 is respectively the top view of the impregnated with diamond block of Fig. 6-8.
Figure 12 is the top view of the angled impregnated with diamond block in the axle center of the transition face of working lining and inoperative layer in the embodiment of the present invention and column type block.
Figure 13,14 is respectively the top view of the impregnated with diamond block of Figure 12.
Figure 15 is that in the embodiment of the present invention, small part is the top view of working lining, most of impregnated with diamond block for inoperative layer.
Figure 16,17 is respectively the top view of the impregnated with diamond block of Figure 15.
The top view that Figure 18 is most of in the embodiment of the present invention is working lining, small part is the impregnated with diamond block of inoperative layer.
Figure 19,20 is respectively the top view of the impregnated with diamond block of Figure 18.
Figure 21-23 is the structural representation of other preferred embodiments of the present invention.
Figure 24 is preparation method's flow chart of impregnated with diamond block in the embodiment of the present invention.
Detailed description of the invention
The invention provides a kind of impregnated with diamond block and preparation method thereof, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to the structural representation that Fig. 1-2 3, Fig. 1-2 3 is the different embodiment of impregnated with diamond of the present invention.A kind of impregnated with diamond block of the present invention, comprise working lining 100 and inoperative layer 200, wherein, described working lining 100 comprises carcass powder and impregnated diamond in carcass powder, described diamond comprises the diamond of two kinds of different-grain diameters: the first particle diameter diamond and the second particle diameter diamond, wherein the adamantine particle diameter of the first particle diameter is greater than the adamantine particle diameter of the second particle diameter, and described adamantine external surface is coated with layer of metal coating, and the described adamantine coat of metal is also coated with layer of metal powder.
The present invention adds the diamond of two kinds of particle diameters in the working lining 100 of impregnated with diamond block, it is when carrying out probing work, first particle diameter diamond of Large stone is responsible for carrying out strong abrasive layer grinding, second particle diameter diamond of small particle diameter delays tyre body abrasion, thus makes the first particle diameter diamond prolongs operating time.The diamond surface of two kinds of particle diameters in addition is also coated with layer of metal coating and metal powder; it at high temperature can form the good strong carbon compound of one deck and diamond and carcass wetability; protection diamond; and carcass is effectively strengthened adamantine hold, extends the application life of impregnated with diamond block.
It is preferred that the shape of impregnated with diamond block can be cylinder, rectangle, square and other polyhedrons or complicated irregularly shaped in the embodiment of the present invention.Further, the shape of impregnated with diamond block of the present invention is cylindrical, and it effectively can reduce the friction with rib in boring procedure, reduces the wearing and tearing to impregnated with diamond block.
Preferably, in the present embodiment, impregnated with diamond block can only be made up of working lining 100, and it also can be made up of working lining 100 and inoperative layer 200, and working lining 100 comprises carcass powder and impregnated diamond in carcass powder, and inoperative layer 200 is made up of carcass powder.Adopt working lining 100 and inoperative layer 200 to combine, can effectively strengthen diamond impregnated intensity.For column type block, Fig. 1-2 3 is the sectional drawing of column type block, and column type ingot diameter is D, D value 10-30um, and column type block height is H, value 10-50um.As described in Fig. 1-3, cylindrical block the first half is working lining 100, is highly h, span 0-25um, and the latter half is inoperative layer 200, particularly, and h=H/2 in Fig. 1; H<H/2 in Fig. 2; H>H/2 in Fig. 3.And Fig. 4 is the sectional drawing of column type block, the transition face in column type block between working lining 100 with inoperative layer 200 is not parallel with column type block bottom surface, i.e. h1 ≠ h2, h1 value 0-25um, h2 value 0-25um, and Fig. 5 is the end face A schematic diagram of Fig. 4.In Fig. 6-Fig. 8, working lining 100 is parallel to cylindrical axle center with the bonding surface of inoperative layer 200 in addition, or and axis coinciding, and Fig. 9-Figure 11 is the schematic diagram of end face B, C, D of Fig. 6-Fig. 8 respectively, particularly, d=D/2 in Fig. 6, d<D/2 in d>D/2, Fig. 8 in Fig. 7.In Figure 12 working lining 100 and the transition face of inoperative layer 200 and the axle center of column type block angled, Figure 13,14 is the schematic diagram of Figure 12 end face F, G respectively.In Figure 15, column type block small part is working lining 100, the schematic diagram of major part to be inoperative layer 200, Figure 16,17 be respectively Figure 15 end face J, I, particularly, and L1 value 0-D, L2 value 0-H.In Figure 18, column type block major part is working lining 100, the schematic diagram of small part to be inoperative layer 200, Figure 19,20 be respectively Figure 18 end face K, M, particularly, and L3 value 0-H, L4 value 0-A.In Figure 21-Figure 23, the transition face of working lining 100 and inoperative layer 200 is curved-surface structure.
More preferably, the combination of described working lining 100 and inoperative layer 200 can be axial direction layering, also can be radial direction layering, and its transition face can be plane, can be also curved surface, not repeat them here.
Carcass is the important component part in impregnated with diamond block, adopt the drill bit prepared by impregnated with diamond block, its ability to work depends on the character of carcass to a great extent, carcass needs to have suitable intensity, toughness, and particularly its hardness and wear resistance will adapt with drilled nature of ground.The powder of carcass described in the present invention comprises one or more metals (or nonmetal) powder in WC, W, Co, Ni, Ti, Mn, Cu, Cr, Mo, P, Si as raw material, specifically, by mass percentage, it comprises carcass of the present invention: WC:0%-75%; W:0%-30%; Co:0%-20%; Ni:0%-50%; Cu:0%-100%; Fe:0%-80%; Cr:0%-40%; Mo:0%-25%; Mn:0%-15%; Ti:0%-50%; P:0%-10%; Si:0-10%.Adopt the carcass powder described in the embodiment of the present invention to prepare the impregnated with diamond composite teeth with two particle diameter, make prepared impregnated with diamond block have good abrasion resistance, flexural strength and impact toughness.
Further, the metal in the described coat of metal comprise in Ti, Cr, Mo, Ni one or more.Plate the coat of metal at diamond surface, it at high temperature can form one deck and the good strong carbon compound of carcass wetability, effectively increases carcass to adamantine hold, diamond and carcass can be combined closely, have good mechanical strength.Adopt one or more metals in Ti, Cr, Mo, Ni as the coat of metal in the present embodiment, itself and diamond have good adhesion.
The block of impregnated with diamond described in the embodiment of the present invention, is also enclosed with layer of metal powder outward at its coat of metal, and wherein, described metal powder comprises one or more metal-powders in carcass powder.Metal-powder in employing carcass powder is as the metal powder be wrapped in outside diamond metal coating, and it is conducive to being uniformly dispersed of carcass meal component, improves carcass to adamantine hold.
Further, the thickness of described metal powder is 50-500 μm.Such as, thickness is adopted to be that the metal powder of 300 μm can make it be attached to well on the adamantine coat of metal in the present embodiment.The thickness of metal powder is too small, is unfavorable for the combination of diamond and carcass; The thickness of metal powder is excessive, together with it cannot be combined closely with the coat of metal.On adamantine metal coating surface, wrapping up the metal powder that a layer thickness is 300 μm in the embodiment of the present invention, metal powder and the coat of metal can being made to combine closely without coming off.
In addition, adopt the diamond of two kinds of particle diameters in the present embodiment, the adamantine concentration of the first particle diameter of described Large stone is 50-200%, and its granularity is 15-75 order; The adamantine concentration of second particle diameter of described small particle diameter is 25-125%.Its granularity is 75-500 order.In diamond-impregnated bit equipment, usual employing concentration represents the content of diamond in carcass, it is the important feature parameter affecting diamond-impregnated bit equipment performance, the algorithm of concentration continues to use emery wheel manufacturing " 400% concentration system ", namely each cubic centimetre of diamond layer is containing 4.4 carats of diamonds, that is, diamond account for carcass 1/4 as 100% concentration, when being all diamond, concentration is 400%.Excessive concentration affects the impregnated ability of carcass and the rotating speed of diamond composite teeth, and abrasion resistance during the too low probing of concentration is not enough, reduces the application life of impregnated with diamond block.
It is preferred that the adamantine concentration of described Large stone is 100%, its granularity is 50 orders; The adamantine concentration of described small particle diameter is 75%, and granularity is 130 orders.Adopt the first particle diameter diamond of Large stone, effectively can strengthen the intensity of carcass, and utilize the adamantine good abrasion resistance of the second particle diameter of small particle diameter, it is impregnated in tire endogenous protective carcass, extend the application life of impregnated with diamond block.
In addition, as shown in figure 24, the present invention also provides a kind of preparation method of impregnated with diamond block, and it comprises the following steps:
S100, choose the diamond of 2 kinds of different-grain diameters, and plate at selected diamond surface the coat of metal that attached a layer thickness is 1-100 μm;
S200, wrap up a layer thickness at the diamond surface plating the attached coat of metal and be the metal powder of 50-500 μm and carry out granulation, the diamond of granulation is mixed with carcass powder, diamond uniform is dispersed in carcass powder and forms working lining tire raw material;
S300, in hot pressing sintering mold, add working lining tire raw material, cold pressing and form impregnated with diamond blank; And impregnated with diamond blank and hot pressed sintering mould are together put into vacuum hotpressing stove sinter;
S400, sintered after, hot pressing sintering mold after impregnated with diamond block cools naturally, finishing impregnated with diamond block.
The embodiment of the present invention adopts vacuum hot pressing technique to prepare impregnated with diamond block, impregnated with diamond blank and hot pressed sintering mould are together put into vacuum hotpressing stove and are sealed by it, burner hearth vacuumizes by the phase before sintering, effectively can avoid the dioxygen oxidation in carcass pruinescence air, make the stability of prepared impregnated with diamond block, anti-wear performance good.
The present invention also provides the specific embodiment of described impregnated with diamond block:
Embodiment 1
A kind of impregnated with diamond block, by mass percentage, its carcass powder consists of:
WC:30%； Ni:10%；
Cu:16%； Fe：30%；
Mn:3%； P：1%；
Co:10%；
Its coat of metal is: Ti:100%;
Its metal powder is: WC:100%;
Its first particle diameter diamond concentration is: 200%; Granularity is: 75 orders;
Its second particle diameter diamond concentration is: 25%; Granularity is: 500 orders.
Impregnated with diamond preparation method in the present embodiment 1, comprises the following steps:
S100, choose the diamond of above-mentioned 2 kinds of different-grain diameters, and plate at selected diamond surface the coat of metal that attached a layer thickness is 100 μm;
S200, wrap up a layer thickness at the diamond surface plating the attached coat of metal and be the metal powder of 500 μm and carry out granulation, the diamond of granulation is mixed with carcass powder, diamond uniform is dispersed in carcass powder and forms working lining tire raw material;
S300, in hot pressing sintering mold, add working lining tire raw material, cold pressing and form impregnated with diamond blank; And impregnated with diamond blank and hot pressed sintering mould are together put into vacuum hotpressing stove sinter;
S400, sintered after, hot pressing sintering mold after impregnated with diamond block cools naturally, finishing impregnated with diamond block.
The impregnated with diamond composite teeth prepared by the present embodiment, its tyre body hardness can reach 31HRC, is applicable to hard, fine and close, low-abrasive rock stratum, hard, medium abrasive rock stratum.The abrasion of working lining are 0.020mm/m, and not adding the adamantine sample abrasion of the second particle diameter is 0.035mm/m.
Embodiment 2
A kind of impregnated with diamond block, by mass percentage, its carcass powder consists of:
WC:40%； Ni:20%；
Mo:5%； Cu:30%；
Si:5%；
Its coat of metal is: Ti:50%; Ni:50%;
Its metal powder is: Cu:60%; Ni:40%;
Its first particle diameter diamond concentration is: 100%; Granularity is: 50 orders;
Its second particle diameter diamond concentration is: 50%; Granularity is: 250 orders.
Identical with embodiment 1 of impregnated with diamond preparation method in the present embodiment, wherein the thickness of the coat of metal is 1 μm, and the thickness of metal powder is 50 μm.
The impregnated with diamond composite teeth prepared by the present embodiment, its hardness can reach 35HRC, is applicable to hard, low-abrasive rock stratum, hard, medium abrasive rock stratum.The abrasion of working lining are 0.010mm/m, and not adding the adamantine sample abrasion of the second particle diameter is 0.020mm/m.
Embodiment 3
A kind of impregnated with diamond block, its carcass powder consists of:
WC:50%； Mn:4%；
Co:10%； Cu:16%；
Ni:10%； Ti:10%；
Its coat of metal is: Ti:40%; Ni:30%; Cr:30%;
Its metal powder is: Ti:50%; Ni:50%;
Its first particle diameter diamond concentration is: 50%; Granularity is: 15 orders;
Its second particle diameter diamond concentration is: 25%; Granularity is: 75 orders.
Identical with embodiment 1 of impregnated with diamond preparation method in the present embodiment, wherein the thickness of the coat of metal is 50 μm, and the thickness of metal powder is 300 μm.
The impregnated with diamond composite teeth prepared by the present embodiment, its hardness can reach 40HRC, hard in being applicable to, medium abrasive rock stratum, in hard, strong abrasiveness rock stratum.The abrasion of working lining are 0.030mm/m, and not adding the adamantine sample abrasion of the second particle diameter is 0.050mm/m.
Embodiment 4
A kind of impregnated with diamond block, its carcass powder consists of:
WC100%；
Its coat of metal is: Ti:25%, Cr:25%, Mo:25%, Ni:25%
Its metal powder kind is identical with carcass powder with composition.
Its first particle diameter diamond concentration is: 100%; Granularity is: 50 orders;
Its second particle diameter diamond concentration is: 30%; Granularity is: 130 orders.
Identical with embodiment 1 of impregnated with diamond preparation method in the present embodiment, wherein the thickness of the coat of metal is 60 μm, and the thickness of metal powder is 200 μm.
The impregnated with diamond composite teeth prepared by the present embodiment, its hardness can reach 20HRC, is applicable to hard, fine and close, low-abrasive rock stratum.The abrasion of working lining are 0.040mm/m, and not adding the adamantine sample abrasion of the second particle diameter is 0.065mm/m.
In sum, a kind of impregnated with diamond block of the present invention and preparation method thereof, by adopting the diamond of two kinds of different-grain diameters to make an addition in carcass powder as raw material, and the coat of metal and the process of coated metal powder being carried out to diamond surface, making together with diamond combines closely with carcass.The wherein said coat of metal can improve the adhesion between diamond and carcass; And coated metal powder can make diamond be uniformly dispersed in carcass; Second particle diameter diamond of small particle diameter added in addition can delay the wearing and tearing of carcass, make the adamantine prolongs operating time of the first particle diameter of Large stone, compare and impregnated with diamond of the prior art, its abrasion resistance properties and toughness etc. are improved significantly.Impregnated with diamond block prepared in the embodiment of the present invention can also not be damaged by available protecting carcass while having good nonferromagnetic substance, effectively extends with the drilling life of bit prepared by impregnated with diamond block, and effectively can improve drilling efficiency.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (9)
1. an impregnated with diamond block, comprise the working lining for drilling operation, it is characterized in that, described working lining comprises carcass powder and impregnated diamond in carcass powder, described diamond comprises the diamond of two kinds of different-grain diameters: the first particle diameter diamond and the second particle diameter diamond, described adamantine external surface is coated with layer of metal coating, and the described adamantine coat of metal is also coated with layer of metal powder.
2. impregnated with diamond block according to claim 1, is characterized in that, described carcass powder comprises one or more metals in WC, W, Co, Ni, Ti, Mn, Cu, Cr, Mo, P, Si or non-metallic powder.
3. a kind of impregnated with diamond block according to claim 1, is characterized in that, the metal in the described coat of metal comprise Ti, Cr, Mo, Ni, in one or more.
4. a kind of impregnated with diamond block according to claim 1, is characterized in that, described metal powder comprises one or more metal-powders in carcass powder.
5. a kind of impregnated with diamond block according to claim 4, is characterized in that, the thickness of described metal powder is 50-500 μm.
6. a kind of impregnated with diamond block according to claim 5, is characterized in that, the thickness of described metal powder is 270 μm.
7. a kind of impregnated with diamond block according to claim 1, is characterized in that, the adamantine concentration of described first particle diameter is 50-200%, and its granularity is 75-200 order.
8. a kind of impregnated with diamond block according to claim 1, is characterized in that, the adamantine concentration of described second particle diameter is 25-125%, and granularity is 35-75 order.
9. a preparation method for impregnated with diamond block, is characterized in that, comprises the following steps:
A, choose the diamond of 2 kinds of different-grain diameters, and plate at selected diamond surface the coat of metal that attached a layer thickness is 1-100 μm;
B, wrap up a layer thickness at the diamond surface plating the attached coat of metal and be the metal powder of 50-500 μm and carry out granulation, the diamond of granulation is mixed with carcass powder, diamond uniform is dispersed in carcass powder and forms working lining tire raw material;
C, in hot pressing sintering mold, add inoperative layer carcass powder and working lining tire raw material, cold pressing and form impregnated with diamond blank; And impregnated with diamond blank and hot pressed sintering mould are together put into vacuum hotpressing stove sinter;
D, sintered after, hot pressing sintering mold after impregnated with diamond block cools naturally, finishing obtain impregnated with diamond block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410774687.4A CN104612591B (en) | 2014-12-16 | 2014-12-16 | A kind of diamond impregnated block body and preparation method thereof |
Applications Claiming Priority (1)
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| CN106052930A (en) * | 2016-08-08 | 2016-10-26 | 中国地质大学（武汉） | Test device of holding force of diamond bit matrix to diamond and method thereof |
| CN107214372A (en) * | 2017-05-26 | 2017-09-29 | 无锡钻探工具厂有限公司 | A kind of edge ring glomerocryst and its processing method for long-life bit gauge protection |
| CN107790710A (en) * | 2017-10-31 | 2018-03-13 | 深圳市海明润超硬材料股份有限公司 | A kind of diamond compact and preparation method thereof |
| CN108342633A (en) * | 2017-12-21 | 2018-07-31 | 北京安泰钢研超硬材料制品有限责任公司 | Carcass composition, the diamond block and preparation method thereof using the composition |
| CN108570590A (en) * | 2018-06-07 | 2018-09-25 | 株洲硬质合金集团有限公司 | A kind of impregnated diamond matrix, impregnated diamond and preparation method thereof |
| CN108705087A (en) * | 2018-04-24 | 2018-10-26 | 广东钜鑫新材料科技股份有限公司 | Diamond compact with control carbon-coating |
| CN110052612A (en) * | 2018-01-18 | 2019-07-26 | 中石化石油工程技术服务有限公司 | Impregnated diamond composite block |
| CN110667198A (en) * | 2019-11-01 | 2020-01-10 | 东莞市瑞年塑胶科技有限公司 | Anti-skid and anti-puncture film plated with metal layer and preparation method thereof |
| CN111318710A (en) * | 2020-04-13 | 2020-06-23 | 长沙百川超硬材料工具有限公司 | Preparation method of high-holding-force diamond-inlaid tool |
| CN116493592A (en) * | 2022-12-20 | 2023-07-28 | 澳普洛钻探工具(无锡)有限公司 | Weakening matrix diamond coring bit for hard stratum development |
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| CN106052930A (en) * | 2016-08-08 | 2016-10-26 | 中国地质大学（武汉） | Test device of holding force of diamond bit matrix to diamond and method thereof |
| CN106052930B (en) * | 2016-08-08 | 2018-08-07 | 中国地质大学（武汉） | The test device and method of a kind of diamond drill bit matrix to diamond hold |
| CN107214372A (en) * | 2017-05-26 | 2017-09-29 | 无锡钻探工具厂有限公司 | A kind of edge ring glomerocryst and its processing method for long-life bit gauge protection |
| CN107214372B (en) * | 2017-05-26 | 2019-11-19 | 无锡钻探工具厂有限公司 | A kind of processing method of the edge ring plycrystalline diamond for long-life bit gauge protection |
| CN107790710B (en) * | 2017-10-31 | 2019-10-18 | 深圳市海明润超硬材料股份有限公司 | A kind of diamond compact and preparation method thereof |
| CN107790710A (en) * | 2017-10-31 | 2018-03-13 | 深圳市海明润超硬材料股份有限公司 | A kind of diamond compact and preparation method thereof |
| CN108342633A (en) * | 2017-12-21 | 2018-07-31 | 北京安泰钢研超硬材料制品有限责任公司 | Carcass composition, the diamond block and preparation method thereof using the composition |
| CN110052612A (en) * | 2018-01-18 | 2019-07-26 | 中石化石油工程技术服务有限公司 | Impregnated diamond composite block |
| CN108705087A (en) * | 2018-04-24 | 2018-10-26 | 广东钜鑫新材料科技股份有限公司 | Diamond compact with control carbon-coating |
| CN108570590A (en) * | 2018-06-07 | 2018-09-25 | 株洲硬质合金集团有限公司 | A kind of impregnated diamond matrix, impregnated diamond and preparation method thereof |
| CN110667198A (en) * | 2019-11-01 | 2020-01-10 | 东莞市瑞年塑胶科技有限公司 | Anti-skid and anti-puncture film plated with metal layer and preparation method thereof |
| CN110667198B (en) * | 2019-11-01 | 2022-04-19 | 瑞年科技(广东)有限公司 | Anti-skid and anti-puncture film plated with metal layer and preparation method thereof |
| CN111318710A (en) * | 2020-04-13 | 2020-06-23 | 长沙百川超硬材料工具有限公司 | Preparation method of high-holding-force diamond-inlaid tool |
| CN116493592A (en) * | 2022-12-20 | 2023-07-28 | 澳普洛钻探工具(无锡)有限公司 | Weakening matrix diamond coring bit for hard stratum development |
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